The Titanic

[jrb]

I don’t think theyve been alive for ages, an expert on the radio said these things are weighted down, if you get into trouble you dump the weights and float to the top, unless the line to severe the weights is fucked then it’s probably suffered a catastrophic failure and they died days ago.

Hopefully. Better go as quick as possible in those circumstances.

 

[denislawsbackheel]

I believe the pressure hull was designed with consultation with NASA and Boeing because of their expertise in carbon fibre technology.

The remainder from what I have read was a bit heath Robinson, particularly the ballast system.

Hmm …
NASA and Boeing expertise is surely in low external pressure environments, not the opposite.

 

[Gareth Barry Conlon]

I don’t think theyve been alive for ages, an expert on the radio said these things are weighted down, if you get into trouble you dump the weights and float to the top, unless the line to severe the weights is fucked then it’s probably suffered a catastrophic failure and they died days ago.

There is only electrical connection between inside and outside the chamber. Anything else would be too much of a weak point. So any systems have to be electrical / no manual system to ditch the balast.

But you would think they would have 2 or 3 separate independent systems that would be able to bring it back up and they should have a last resort one on a timer that just forces it up after 24hours. I did hear it had a timer based system but obviously its not worked.

You get the impression 1 battery feeds it all - system goes down and thats it.

 

[Mad Eyed Screamer]

You’d never be able to open the door anyway with all the pressure pushing it shut.

Open it inwards rather than outwards!

 

[mosssideblue]

Hmm …
NASA and Boeing expertise is surely in low external pressure environments, not the opposite.

No idea mate, but they are expert in carbon fibre and stresses

 

[Gareth Barry Conlon]

Hmm …
NASA and Boeing expertise is surely in low external pressure environments, not the opposite.

Same concept though. All about knowing how much stress something can withstand.

 

[mosssideblue]

There is only electrical connection between inside and outside the chamber. Anything else would be too much of a weak point. So any systems have to be electrical / no manual system to ditch the balast.

But you would think they would have 2 or 3 separate independent systems that would be able to bring it back up and they should have a last resort one on a timer that just forces it up after 24hours. I did hear it had a timer based system but obviously its not worked.

You get the impression 1 battery feeds it all - system goes down and thats it.

Not quite right. There were external electrical connections penetrating the pressure hull for lighting and propulsion as well as hydraulic actuators. There were three ways do ditch the ballast, electrical computer controlled, hand lever for operating hydraulic actuators and direct hand control.

 

[mosssideblue]

Open it inwards rather than outwards!

Noooooooooo, never

 

[Skip Donoghue]

I wonder if they were able to open the door from inside the vessel, if so I would have taken drowning over being trapped in a tin can.

Apparently drowning can occur within a minute or so, I’d take that over slow suffocation.

Just like the victims who jumped off the World Trade Centre roof rather than be consumed by fire and a collapsing building, lesser of two evils.

As soon as you cranked one of the bolts even half a turn you would likely be crushed to nothing
That's probably why the option to open from the inside wasn't an option when the thing was designed

 

[SkyBlueFlux]

Hmm …
NASA and Boeing expertise is surely in low external pressure environments, not the opposite.

Reminds me of that Futurama episode where their ship is sinking on an ocean planet.

“Professor, how many atmospheres of pressure can this ship withstand?”
“Well it’s a spaceship so I’d say probably somewhere between zero and one.”